The approach to the temple Kimpusen-ji consists of a main black gate, a copper gate and a final gate. The main hall is a magnificent two-story structure thatched with silver cedar bark. It was rebuilt in 1592; however, it is possible that the foundation dates beyond the oldest documentation of 1103. The main hall is constructed of 68 wooden pillars and measures 27.3m wide, 25.8m long, and has a height of 33.9m. An especially unique pillar was carved from the trunk of a rare azalea tree. The main hall of Kimpusen-ji is consecrated by the three great images Kongo Zao Gongen, which is the object of mountain worship fused with Buddhism. For this reason, Kimpusen-ji is generally referred to as Zao do.